Pith Number

pith:4VLF5FRE

pith:2013:4VLF5FREH3O2CYO5CFK563YMUQ

not attested not anchored not stored refs pending

Entanglement-based quantum key distribution with biased basis choice via free space

Cheng-Zhi Peng, Fei Zhou, Ge-Sheng Pan, Hai-Lin Yong, Hao Liang, Jian-Wei Pan, Ji-Gang Ren, Juan Yin, Tao Yang, Xiongfeng Ma, Yuan Cao, Yu-Huai Li, Yu-Ping Wu

arxiv:1304.6462 v2 · 2013-04-24 · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4VLF5FREH3O2CYO5CFK563YMUQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:50:22.801754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5565e96243edda161dd1155df6f0ca433ac5ad3295cf02980c33b07b74d5c0f

Aliases

arxiv: 1304.6462 · arxiv_version: 1304.6462v2 · doi: 10.48550/arxiv.1304.6462 · pith_short_12: 4VLF5FREH3O2 · pith_short_16: 4VLF5FREH3O2CYO5 · pith_short_8: 4VLF5FRE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4VLF5FREH3O2CYO5CFK563YMUQ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e5565e96243edda161dd1155df6f0ca433ac5ad3295cf02980c33b07b74d5c0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92476286448c8f6a05f43791ed28f68ed63923b4ec0828778d10ee479b552db8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-04-24T01:33:19Z",
    "title_canon_sha256": "ea8474a3a66258ec0d028f82ecebe3438677a65ede2fab024f4db2707aec03e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6462",
    "kind": "arxiv",
    "version": 2
  }
}